<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="../vue.js"></script>

</head>
<body>
<div id="app">
    <div v-if="Math.random() > 0.5">
        Sorry
        {{Math.random()}}
    </div>
    <div v-else>
        Not sorry
        {{Math.random()}}
    </div>
</div>



</body>
<script>
 new Vue({
   el: '#app'
 })
</script>
</html>